How do the materials of ring die and roller determine the efficiency of feed production?

In the field of feed production, pelleting is crucial, and the ring die and roller are core components, just like the key gears in precision instruments. The quality of their materials plays a decisive role in the overall feed production efficiency, covering the two key dimensions of service life and pelleting effect.

As the key mold for forming feed pellets, the working environment of the ring die is extremely harsh. During the pelleting process, it must not only withstand the high-frequency friction of various components in the feed, but also withstand the extrusion force of the feed under high pressure after quenching and tempering. In order to cope with such harsh working conditions, high-quality ring dies usually use high-strength alloy steel as the base material. This type of alloy steel has excellent comprehensive mechanical properties, high strength and toughness, and can withstand huge pressure while not prone to brittle fracture.

It is not enough to simply use high-strength alloy steel. Special heat treatment processes are the key to further tapping the potential of materials. Through a carefully designed heat treatment process, the internal organizational structure of the ring die is optimized, the dislocation density is increased, and the crystal structure is more compact. This greatly improves the wear resistance of the ring die, and can effectively resist the scratching and wear of hard components such as minerals and fibers in the feed. The anti-fatigue performance is also significantly enhanced. In the face of continuous periodic extrusion force, the ring die can maintain a stable working state for a long time, greatly extending the replacement cycle and reducing the production interruption and cost loss caused by equipment shutdown and replacement of the ring die.

The roller plays a key role in pushing the feed into the ring die hole during the feed pelletizing process. Its working characteristics determine that it also needs to have special material properties. High hardness and wear resistance are the core requirements of the roller material. At present, high alloy steel or wear-resistant cast iron is mostly used. High alloy steel has high hardness and good wear resistance due to the strengthening effect of its alloy elements, and can maintain a stable working surface state in continuous contact with feed and ring die. Wear-resistant cast iron uses its unique graphite distribution morphology to show excellent wear resistance on the basis of ensuring a certain strength, and the cost is relatively more controllable. It is widely used in feed production scenarios of different scales.

In addition to the selection of the material body, the surface treatment process of the roller should not be ignored. Appropriate surface roughness is one of the key factors to ensure the efficient operation of the roller. If the surface is too smooth, the feed will easily slip on the roller surface and will not be able to obtain sufficient extrusion force to enter the ring die hole, resulting in low pelleting efficiency and poor pellet forming. If the surface is too rough, although it can enhance the gripping force of the feed, it will increase unnecessary friction loss and aggravate the wear of the roller itself. At the same time, it will also cause the feed to heat up too high during the extrusion process, affecting the nutritional content of the feed. After a finely controlled surface treatment process, the roller surface has just the right roughness, which can not only tightly grasp the feed and squeeze it into the ring die hole efficiently, but also control the friction loss within a reasonable range, achieving a balance between pelleting effect and service life.

From the perspective of the overall feed production process, the material selection of the ring die and the roller and their derived performance performance connect multiple key factors such as production efficiency, product quality and production cost. High-quality materials and reasonable surface treatment enable the equipment to produce feed pellets with good appearance, solid hardness and suitable density on the basis of long-term stable operation, meeting the feeding needs of different farmed animals. At the same time, due to the extended service life of the ring die and the roller, the frequency of equipment maintenance is reduced, which not only reduces the maintenance cost, but also ensures the continuity and stability of feed production, providing a solid guarantee for the feed factory to enhance its overall competitiveness.

At a time when the feed industry is constantly pursuing efficient, high-quality, and low-cost production, in-depth exploration of the material secrets of the ring die and roller and continuous optimization of their performance are undoubtedly one of the important paths for feed factories to achieve sustainable development. Only by accurately grasping this core link can we stand out in the fierce market competition and provide a steady stream of high-quality feed products for the breeding industry.